Home / 12,937.22-19,405.42-3,577.80

Finding the Fourth Proportional to 12,937.22, 19,405.42 and 3,577.80

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Solution

The fourth proportional to 12,937.22, 19,405.42 and 3,577.80 is: 5,366.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,937.22 : 19,405.42 = 3,577.80 : x
  2. Step 2: Convert to fraction form
    12,937.22/19,405.42 = 3,577.80/x
  3. Step 3: Cross multiply
    12,937.22x = 19,405.42 × 3,577.80
  4. Step 4: Simplify right side
    12,937.22x = 69,428,711.68
  5. Step 5: Solve for x
    x = 69,428,711.68/12,937.22
  6. Step 6: Final answer
    x = 5,366.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.